Cho Jeong-Hyeon, Kim Jae-Hoon, Park Jin Woo
Jeju Fisheries Research Institute, National Institute of Fisheries Science, Jeju 63068, Korea.
Animals (Basel). 2022 May 30;12(11):1403. doi: 10.3390/ani12111403.
The effect of feeding with taurine-enriched rotifers on larval growth and survival in the small yellow croaker was investigated. Rotifers, control (without taurine enrichment) or enriched with a commercial taurine supplement at two concentrations (400, and 800 mg/L), were used. The larvae (initial notochord length = 3.83 mm) were fed taurine-enriched rotifers in triplicate, from 3 days after hatching for 12 days. The average taurine contents of the rotifers were 0.31, 5.34, and 8.55 mg/g dry matter, respectively. The rotifers from all treatments had similar fatty acid composition. The growth and survival rates of the larvae fed rotifers enriched with 800 mg/L taurine supplementation were significantly higher than those of larvae fed rotifers without taurine enrichment ( = 0.005 and 0.002, respectively). The whole-body taurine content in the fish increased significantly with the increase in taurine level in the rotifers: 1.02, 3.48, and 4.11 mg/g in larvae fed control rotifers, and rotifers enriched with 400, and 800 mg/L taurine supplementation, respectively. The results of this study indicate that small yellow croaker larvae benefit from taurine concentrations above those typically reported in non-taurine-enriched rotifers.
研究了用富含牛磺酸的轮虫喂养对小黄鱼幼体生长和存活的影响。使用了对照组（未添加牛磺酸）或添加两种浓度（400和800毫克/升）商业牛磺酸补充剂的轮虫。幼体（初始脊索长度 = 3.83毫米）从孵化后3天开始，以富含牛磺酸的轮虫为食，一式三份，持续12天。轮虫的平均牛磺酸含量分别为0.31、5.34和8.55毫克/克干物质。所有处理组的轮虫脂肪酸组成相似。喂食添加800毫克/升牛磺酸轮虫的幼体生长率和存活率显著高于喂食未添加牛磺酸轮虫的幼体（分别为 = 0.005和0.002）。随着轮虫中牛磺酸水平的增加，鱼体中的牛磺酸含量显著增加：喂食对照组轮虫、添加400毫克/升牛磺酸轮虫和添加800毫克/升牛磺酸轮虫的幼体，其牛磺酸含量分别为1.02、3.48和4.11毫克/克。本研究结果表明，小黄鱼幼体受益于高于未添加牛磺酸轮虫中通常报道浓度的牛磺酸。
